2. Open the picture P you want (as shown in the figure? I want to make this P thinner)

3. Select the layer where the picture is located and press CTRL+L to copy a layer as the background copy.

4. Open it? Filtration-Liquefaction Opens the Liquefaction dialog box.

5. Select Forward Tool in the Liquefaction dialog box.

Then drag and drop the modification with the "Push Tool" where it needs to be modified.

6. compare it.